| Geochemical data for stream sediment and surface water samples from        Panther Creek, the Middle Fork of the Salmon River, and the Main Salmon        River, collected before and after the Clear Creek, Little Pistol, and        Shellrock wildfires of 2000 in central Idaho |
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| By Robert G. Eppinger1, Paul H. Briggs1, Betsy Rieffenberger2, Carol        Van Dorn3, Zoe Ann Brown1, James G. Crock1, Philip H. Hageman1, Allen        Meier1, Stephen J. Sutley1, Peter M. Theodorakos1, and Stephen A. Wilson1 |
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| **1** U.S. Geological        Survey, Denver, Colorado**2** U.S. Forest Service, Salmon-Challis            National Forest, Salmon, Idaho**3** U.S. Forest Service, Santa Fe National            Forest, Santa Fe, New Mexico |
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| Open-File Report 2003-152 |
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| **This report supercedes OFR-01-161** |
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| **Version 1.0** |
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| Published 2003  |

| In 1996, the U.S. Geological Survey conducted a reconnaissance baseline      geochemical study in central Idaho. The purpose of the baseline study was      to establish a "geochemical snapshot" of the area, as a datum      for monitoring future change in the geochemical landscape, whether natural      or human-induced. In the summer of 2000, there were numerous large wildfires      in central Idaho. In particular, the Clear Creek (206,000 acres; 83,370      hectares), Little Pistol (74,000 acres; 29,950 hectares), and Shellrock      (64,000 acres; 25,900 hectares) fires swept across much of the area that      was sampled. In 2001, ten months after the wildfires, the entire area was      resampled by occupying and recollecting at the same sample sites initially      sampled in 1996. This work was done and the request of the U.S. Forest      Service, Salmon-Challis National Forest. This report presents the methodology,      analytical results, and sample descriptions for water, sediment, and heavy-mineral      concentrate samples collected in the 1996 pre-wildfire and 2001 post-wildfire      sampling periods. Also presented are digital images of the 2001 post-wildfire    sample sites. |
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| The text of this report is presented here in Portable Document Format.      The latest version of Adobe Acrobat Reader or similar software is required      to view it. If you wish to download the latest version of Acrobat Reader      free of charge, click here |
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| ****Note:*****You          must view the PDF in your browser in order for the links within it          to work.***(This version of the report is accessible as defined in Section 508.)* |
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| - OFR-03-152 PDF            file (450 KB)                                                                                                                                                |
| - Readme.txt file (6 KB)                                                                                                                                                                 |

| Contents of This Report--
        There are 4 directories (folders) containing data associated    with the report OFR-03-152.PDF. The directories and their contents are:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
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| FIGURES
**Contents:**location figures referred to in OFR 03-152.PDF file, all              in .PDF format**Files:**FIGURE1.PDF general location figure of study area      FIGURE2.PDF more detailed location figure with sample sites                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
| ACCESS
**Contents:**analytical data as integrated Microsoft Access 2000 database**Files:**DATA.MDB                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
| EXCEL
**Contents:**analytical data as individual Microsoft Excel files (version              3.0)**Files:** SAMPLOG.XLS Listing of all sample sites and media collected              at each site          SITEINFO.XLS Information related to the sample site          WATSITEI.XLS Information related to water sample sites          WATANI.XLS Anion analyses, filtered/unacidified water samples          WATCATFA.XLS Cation analyses, filtered/acidified water samples          WATCATRA.XLS Cation analyses, raw unfiltered/acidified water samples          WATHG.XLS	Mercury analyses, filtered/preserved water samples          WATFE2+.XLS Fe2+ analyses, filtered/acidified water samples          WATALK,XLS alkalinity analyses, unfiltered/unacidified water samples          HMCONC.XLS Heavy-mineral concentrate descriptive and analytical data          SEDIMENT.XLS Sediment descriptive and analytical data      WILDFIRE.XLS	Wildfire information and sorting codes |
| PHOTOS
**Contents:**digital images of the 2001 sample sites as .PDF files**Files:**Filenames are the same as the sample site ID numbers with .PDF      extensions.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |

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| U.S. Department of the Interior | U.S. Geological Survey      URL: https://pubsdata.usgs.gov/pubs/of/2003/152/Questions or Assistance: USGS Web ContactPage Last Modified: Sun Jan 13 00:02 EDT 2013 |  |

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